add terminfo install in build.sh

build.sh

@@ -8,8 +8,13 @@ for patch in patches/*.diff; do
 done
 cp -f config.h st-final/
 cd st-final || exit 1
+
 if [ "$1" = "-i" ]; then
     sudo make install
+elif [ "$1" = "-ti" ]; then
+    mkdir -p /usr/local/share/terminfo/s/
+    make terminfo
+    cp -a terminfo/s/* /usr/local/share/terminfo/s/
 else
     make
 fi